This feels somewhat close to how human minds work, to me, maybe? I know my diction gets super stilted, I compose complex predicates, and I use longer words with more adjectives when I'm talking about technical subjects. When I'm discussing music, memey news, or making simple jokes I get much more fluent, casual, and I use simpler constructions. When I'm discussing a competitive game I'm likely to be a bit snarkier, because I'm competitive and that part of my personality is attached to the domain and the relevant language. And so on.